公开(公告)号：US20220076875A1

公开(公告)日：2022-03-10

申请号：US17463686

申请日：2021-09-01

Applicant: CHILISIN ELECTRONICS CORP.

Inventor： YI-CHUN JIN ,  MING-CHIEH CHIU

IPC: H01F27/28 ,  H01F17/00 ,  H01F27/32

Abstract: A thin film inductor and a manufacturing method thereof are provided. The thin film inductor includes a coil assembly, a first magnetic layer, and a second magnetic layer. The coil assembly includes a substrate, a first conductive wire, and a second conductive wire. The first and second conductive wires electrically connected to each other are disposed on first and second surfaces of the substrate, and each have a plurality of winding turns. The first and second conductive wires are embedded in the first and second magnetic layers, respectively. A part of the first magnetic layer fills into a gap between any two adjacent winding turns of the first conductive wire, and a part of the second magnetic layer fills into a gap between any two adjacent winding turns of the second conductive wire.